Street-lamp.



No. 864,958. PATENTED SEPT. 3,1907.

- J. DOYLE.

STREET LAMP. APPLICATION FILED JULY 29. 1904.

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JOHN DOYLE, OF NEW YORK, N. Y ASSIGNOR TO MUNICIPAL LIGHTING COMPANY, OFNEW YORK, N. Y., A CORPORATION O F NEW JERSEY.

STREET-LAMP.,

Specification of Letters Patent.

Patented Sept. 3, 1907.

To all whom it may concern:

Be it known that I, JOHN DOYLE, a citizen of the United States, residingat New York, in the county and State of New York, have invented certainnew and useful Improvements in Street-Lamps, of which the following is aspecification, reference being had to the drawing accompanying andforming part of the same. f

My invention relates to street lamps of the type in I which the lampproper is supported on a suitable post, and has for its object toprovide such a lamp which shall be sightly in appearance and soconstructed that ready access may be had to the interior parts thereoffor cleaning, repairs, etc.

To these and other ends the invention consists in the novel features,arrangements of parts, and combinations of elements, hereinafterdescribed, and more particularly set forth in the claims.

I ilustrate the preferred embodiment of my invention in the accompanyingdrawing, in which Figure 1 is a side elevation of the lamp, with thecasing of the globe gallery in section. Fig. 2 is a detail of thepivotal connection between the lamp and the supporting arms, showing aconvenient device for securing said connection to prevent accidentaldisplacement of the lamp. Fig. 3 is a detail showing the con nectionbetween the lamp and the gas supply pipe. Fig. 4 is a detail view of amodification, in which the gaseous or liquid fuel is supplied to theburners through one of the supporting arms.

The post or support, indicated by l, carries a pair of branching arms 2,3, preferably tubular as shown in Fig. 2.- On the upper ends of thesearms is supported a lamp, which in the present embodiment of theinvention includes a casing or hood 4 having a flaring reflector 5.Through the casing extends a pipe 6, closed at its top 7, and carryingnear its lower end 8 a plurality of burners, 9. On the pipe is a slidingsleeve 10, which carries a globe gallery 11 supporting a globe l2.Surrounding the gallery is a casing 13, which not only gives anornamental finish to that part of the lamp, but also prevents theadmission of drafts which would disturb the operation of the lamp.

The gaseous or liquid hydrocarbon fuel is supplied to the pipe 6, 8, andthence to the burners 9, from a supply pipe 14. The two are connected bymeans of a detachable union of any suitable construction, as for examplethat illustrated in Fig. 3. As there shown, the pipe 14 is provided witha flaring end 15, to fit the correspondingly tapered end 16 of the pipe8. A threaded collar or union 17, having a flange 18 engaging the flar-I seating faces firmly together. If desired a packing between the twomay be used, as indicated at 19.

Secured to the flaring reflector 5 is a pair of cars 20, j

21, which are pivoted to the supporting arms 2, 3, by pivots 22, 23, sothat by disconnecting the union 17 the lamp may be swung out and theglobe then readily removed for cleaning and to afford access to theburners. One of the pivots, or both if desired, is preferablyconstructed so as to provide means for securing the lamp firmly on thesupports in any position and to pre vent the objectionable rattlingwhich a loose pivot might produce. A simple and convenient device forthis purpose is shown in Fig. 2, in which the headed bolt 22 is screwthreaded in the arm 2 and is provided with a handle 24 for readymanipulation. Turning up the bolt 22 will draw the car 20 firmly againstthe arm 2, thereby holding the lamp in any position desired. Thiscapability is of particular value at times when it is desired to repairor clean the lamp. The globe may be more readily removed, replaced oradjusted if the operator is free to use both hands for that purpose,which would not be the case if it were necessary to use one hand merelyto hold or steady the lamp on its pivots.

It will be noted that the conducting tube or climbing lighter? 25 isremovably seated in the socket 26, so that it may be readily lifted outof engagement therewith when the union 17 is to be disconnected and thelamp tilted. The cock or valve 27 may be of any suitable constructionfor first admitting gas to the lighter 25, then to the burners 9, andfinally cutting off the gas to the lighter, all in a single movement ofthe valve plug 28. I do not illustrate this construction as such valvesare common and well known.

Instead of leading the fuel to the burners from below, as abovedescribed, it may be delivered through one of the tubular arms 2, 3,then to the pipe 6 and down to the burners, a construction which I donot illustrate in full as it is broadly old to supply fuel in this way.However, in order to enable the lamp to be tilted as before described, Iprovide a pivot joint between the supply arm and the pipe leadingtherefrom to the pipe 6. A convenient construction for this purpose isshown in Fig. 4. Here the supply arm is indicated by 29,

having a short nipple 30 with a flaring edge 31, coacting with thecorrespondingly tapered end of the pipe 32 which passes up through thereflector and through the casing 4 to the pipe 6. A collar or union 33screw threaded in the pipe 32, engaging the flaring edge 31 of thenipple, draws the parts together firmly enough to permit the pipe 32 toturn, but preventing leakage around the joint.

From the foregoing, it will be seen that access to the interior of thelamp is conveniently secured, while the ornamental character of the lampis in no way impaired. The specific construction illustrated is ofcourse merely typical of the invention, which may be embodied in widelyvarying forms without departing 1. In a street lamp, the combination ofa post having a pair of vertical supporting arms in fixed positionrelative thereto, a gas lamp betweensaid arms, a reflector carried bythe lamp and extending beyond the supporting arms, pivotal connectionsbetween the reflector and the arms, means for locking the lamp at willagainst movement in said arms, and means for supplying gas to the lamp,as set forth.

2. In a street lamp, the combination of a post, a pair of verticalsupporting arms carried thereby, a gas lamp between the arms, and ahorizontal reflector on the lamp, provided with ears pivotally connectedwith the upper ends of the said arms, as set forth.

In a street lamp, the combination of a post, a pair of verticalsupporting arms rigidly mounted on the post, and a gas lamp arrangedbetween the arms and provided with a horizontal reflector, extendingbeyond the arms and pivotally connected thereto, as set forth.

JOHN DOYLE.

Witnesses SAMUEL GILMORE, THOMAS J. MELLon.

